the u.s. was at war virtually every decade of the 20th century, so if we think of ourselves as peaceful country that does not engage in war, we need to rethink that. >> that is right. david, i want to ask this question, because where we were before and boots on the ground, the sense of the collective experience of war was quite different. we were looking at the numbers of military troops versus civilian americans not engaged and it is less than 1% of the u.s. population that is doing the fighting, and now with technology and drones, it, part of it why perpetual war seems possible because there is little cost to the vast majority of us. >> well, if we had a universal draft and in 1994 two-thirds of the class of princeton was drafted. that is a huge check on the politicians, and the policies that we are are following with drones are infuriating people because other people get killed and innocent people killed along the way, which raises in your question that you are raising future conflicts, and